diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64e93a44..e52bd79b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [2.2.2](https://github.com/googleapis/java-bigquerydatatransfer/compare/v2.2.1...v2.2.2) (2022-05-26)
+
+
+### Dependencies
+
+* update dependency com.google.protobuf:protobuf-java-util to v3.21.0 ([#1375](https://github.com/googleapis/java-bigquerydatatransfer/issues/1375)) ([f4497f5](https://github.com/googleapis/java-bigquerydatatransfer/commit/f4497f5fe4c47a1359283f9e44778a0531177acf))
+
 ### [2.2.1](https://github.com/googleapis/java-bigquerydatatransfer/compare/v2.2.0...v2.2.1) (2022-05-25)
 
 
diff --git a/README.md b/README.md
index c138662e..fb841ee1 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ If you are using Maven without BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquerydatatransfer</artifactId>
-  <version>2.1.23</version>
+  <version>2.2.1</version>
 </dependency>
 
 ```
@@ -56,13 +56,13 @@ implementation 'com.google.cloud:google-cloud-bigquerydatatransfer'
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-bigquerydatatransfer:2.2.0'
+implementation 'com.google.cloud:google-cloud-bigquerydatatransfer:2.2.1'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigquerydatatransfer" % "2.2.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigquerydatatransfer" % "2.2.1"
 ```
 
 ## Authentication
diff --git a/google-cloud-bigquerydatatransfer-bom/pom.xml b/google-cloud-bigquerydatatransfer-bom/pom.xml
index 50453f29..1e1d2699 100644
--- a/google-cloud-bigquerydatatransfer-bom/pom.xml
+++ b/google-cloud-bigquerydatatransfer-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquerydatatransfer-bom</artifactId>
-  <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+  <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,17 +52,17 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigquerydatatransfer</artifactId>
-        <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+        <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-bigquerydatatransfer-v1</artifactId>
-        <version>2.2.1</version><!-- {x-version-update:grpc-google-cloud-bigquerydatatransfer-v1:current} -->
+        <version>2.2.2</version><!-- {x-version-update:grpc-google-cloud-bigquerydatatransfer-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-bigquerydatatransfer-v1</artifactId>
-        <version>2.2.1</version><!-- {x-version-update:proto-google-cloud-bigquerydatatransfer-v1:current} -->
+        <version>2.2.2</version><!-- {x-version-update:proto-google-cloud-bigquerydatatransfer-v1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-bigquerydatatransfer/pom.xml b/google-cloud-bigquerydatatransfer/pom.xml
index 28934e4a..2b7aaeab 100644
--- a/google-cloud-bigquerydatatransfer/pom.xml
+++ b/google-cloud-bigquerydatatransfer/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquerydatatransfer</artifactId>
-  <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+  <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
   <packaging>jar</packaging>
   <name>BigQuery DataTransfer</name>
   <url>https://github.com/googleapis/java-bigquerydatatransfer</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigquerydatatransfer-parent</artifactId>
-    <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+    <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-bigquerydatatransfer</site.installationModule>
diff --git a/grpc-google-cloud-bigquerydatatransfer-v1/pom.xml b/grpc-google-cloud-bigquerydatatransfer-v1/pom.xml
index 043a4d76..e99b9d9b 100644
--- a/grpc-google-cloud-bigquerydatatransfer-v1/pom.xml
+++ b/grpc-google-cloud-bigquerydatatransfer-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-bigquerydatatransfer-v1</artifactId>
-  <version>2.2.1</version><!-- {x-version-update:grpc-google-cloud-bigquerydatatransfer-v1:current} -->
+  <version>2.2.2</version><!-- {x-version-update:grpc-google-cloud-bigquerydatatransfer-v1:current} -->
   <name>grpc-google-cloud-bigquerydatatransfer-v1</name>
   <description>GRPC library for grpc-google-cloud-bigquerydatatransfer-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigquerydatatransfer-parent</artifactId>
-    <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+    <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index c975674b..ecb6ee84 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquerydatatransfer-parent</artifactId>
   <packaging>pom</packaging>
-  <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+  <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
   <name>BigQuery DataTransfer Parent</name>
   <url>https://github.com/googleapis/java-bigquerydatatransfer</url>
   <description>
@@ -68,17 +68,17 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-bigquerydatatransfer-v1</artifactId>
-        <version>2.2.1</version><!-- {x-version-update:proto-google-cloud-bigquerydatatransfer-v1:current} -->
+        <version>2.2.2</version><!-- {x-version-update:proto-google-cloud-bigquerydatatransfer-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-bigquerydatatransfer-v1</artifactId>
-        <version>2.2.1</version><!-- {x-version-update:grpc-google-cloud-bigquerydatatransfer-v1:current} -->
+        <version>2.2.2</version><!-- {x-version-update:grpc-google-cloud-bigquerydatatransfer-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigquerydatatransfer</artifactId>
-        <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+        <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
       </dependency>
 
       <!-- Test dependencies -->
diff --git a/proto-google-cloud-bigquerydatatransfer-v1/pom.xml b/proto-google-cloud-bigquerydatatransfer-v1/pom.xml
index f597b71f..51a6aecb 100644
--- a/proto-google-cloud-bigquerydatatransfer-v1/pom.xml
+++ b/proto-google-cloud-bigquerydatatransfer-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-bigquerydatatransfer-v1</artifactId>
-  <version>2.2.1</version><!-- {x-version-update:proto-google-cloud-bigquerydatatransfer-v1:current} -->
+  <version>2.2.2</version><!-- {x-version-update:proto-google-cloud-bigquerydatatransfer-v1:current} -->
   <name>proto-google-cloud-bigquerydatatransfer-v1</name>
   <description>PROTO library for proto-google-cloud-bigquerydatatransfer-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigquerydatatransfer-parent</artifactId>
-    <version>2.2.1</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
+    <version>2.2.2</version><!-- {x-version-update:google-cloud-bigquerydatatransfer:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 302bd050..031aa7a8 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -28,14 +28,14 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquerydatatransfer</artifactId>
-      <version>2.1.23</version>
+      <version>2.2.1</version>
     </dependency>
     <!-- [END bigquerydatatransfer_install_without_bom] -->
 
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.20.1</version>
+      <version>3.21.0</version>
     </dependency>
 
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 55600a61..f7b1a73c 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,14 +28,14 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquerydatatransfer</artifactId>
-      <version>2.2.1</version>
+      <version>2.2.2</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.20.1</version>
+      <version>3.21.0</version>
     </dependency>
 
     <dependency>
diff --git a/versions.txt b/versions.txt
index c542c0f5..ef86df37 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-bigquerydatatransfer:2.2.1:2.2.1
-grpc-google-cloud-bigquerydatatransfer-v1:2.2.1:2.2.1
-proto-google-cloud-bigquerydatatransfer-v1:2.2.1:2.2.1
+google-cloud-bigquerydatatransfer:2.2.2:2.2.2
+grpc-google-cloud-bigquerydatatransfer-v1:2.2.2:2.2.2
+proto-google-cloud-bigquerydatatransfer-v1:2.2.2:2.2.2